Hone.



No. 786,141. PATBNTED 1111111.28, 1905.l

l T. MOGRAIL & J. GWENS.

BONE.

APPLIOATIUN FILED Nov. 1, 1904.

@www

' f 7l gam 151m? Streuung UNITED STATES Patented March 28, 1905.

PATENT OFFICE.

HONE.

SPECIFICATION forming part of Letters Patent No. 786,141, dated March28, 1905.

Application filed November l, 1904. Serial No. 230,986. v

To CLZZ whom/ Z125 711/60,/ concern,.-

Be it known that we, THOMAS MCGEAIL and JOHN OWENS, citizens oi' theUnited States, re-

siding at Oentralia, in the county of Lewis andV State of Washington,have invented certain new and useful Improvements in Hones; and we dodeclare the fol-lowing to bea full, clear, and exact description of theinvention, such as will enable others skilled in the art to which itappertains to make and use the same.

This invention relates to improvements in hones for razors and other{ine-edged instruments.

The object of the invention is to provide a hone having magneticproperties which will attract a razor or other instrument by being drawnacross the same in the act of sharpening.

A further object is to providemeans in connection with a hone oil thischaracter whereby the magnetic properties of the same will be removed atthe points where the razor or other instrument is turned in itsreciprocating movement across the hone.

With these and other objects in view the invention consists of certainnovel features of construction,combination,and arrangement oi' parts, aswill be more fully described, and particularly pointed out in theappended claims.

In the accompanying drawings, Figure l is a perspective view of a honeconstructed in accordance with the invention. Fig. 2 is an end elevationof the same. Fig. 3 is a perspective view showinga modified form of theinvention.

Referring more particularly to Figs. 1 and 2 of the drawings, l denotesa block which is preferably rectangular in shape and is formed of steelor other material having magnetic properties. The upper and lower sidesof the hone may be smoothly polished, or the same may be grained, or, ifdesired, oneside of thesame may be polished and the opposite sidegrained. In one end of thehone l is Jformed Vertical and horizontallongitudinally-disposed slots 2 and 3, which extend from said endupwardly to near the opposite end of the hone, thereby separating aportion of the same into ionr poles after the manner ofhorseshoe-magnets. Near each end of the hone and in one or both sides ofthe same are formed transversely disposed dovetail recesses 4, intowhich are adapted to be inserted dovetail-shaped blocks 5, the uppersides of which are adapted to lie flush with the surface of the lione.These blocks are preferably formed of brass or other non-magneticmaterial.

In Fig. 3 of the drawings is shown a hone l, which is similar inconstruction to that shown in Figs. 1 and 2, but in which the slots 2and 3 are not formed, thus leaving the hone solid throughout its entirelength.

In Fig. 4 of the drawings is shown a hone formed of a solid block ofsteel or other metal which may or may not be magnetizech as desired, andin which both the slots and the brass plates are left out.

The object of the brass or non-magnetic plates 5 is to form a ilushsurface near each end of the hone where there will be no magneticinfluence to attract the blade of the instrument being sharpened,thereby enabling said blade to be more readily turned for the returnstroke. l

A hone constructed as herein shown and described will be found to beeflicient and well adapted to the purpose of sharpening razors and othertine-edged instruments more quickly and easily than can be done on honesof the usual construction.

Frein the foregoing description, taken in connection with theaccompanying drawings, the construction and operation of the inventionwill be readily understood without requiring a more extendedexplanation.

Various changes in the form, proportion, and the minor details ofconstruction may be resorted to without departing from the principle orsacrificing any of the advantages of this invention.

Having thus described our invention, what we claim as new, and desire tosecure by Letters Patent, is

l. A hone having a magnetic body portion and non-magnetic parts arrangednear each end of the same.

2. A hone having a magnetic body portion,

dovetailed edges adapted to be inserted in said dovetail grooves theupper surface of said 15 blocks being liush with the surface of saidbody portion, substantially as described.

In testimony whereof' We have hereunto set our hands in presence of twosubscribing witnesses.

THOMAS MCGRAIL. JOHN OWENS.

Witnesses:

D. B. REBS, MILES MCGRAIL.

